yeah cheers guys lol I worked it out just as I was falling alseep last night 🙂

DP – Thanks for explaining it 🙂 I dont appreciate being told to put my brain in gear, all ive done is completely overthink the experiment.

I reckon you think too much:D If you were serious about trying something out I am of the opinion that it is far better to overthink the problem rather than underthink it. All you’ve done is think more than you had to but that is the way to take as many variables as possible out of the problem.